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From "Bryan Pendleton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-27) MapRed tries to allocate tasks to nodes that have no available disk space
Date Mon, 26 Jun 2006 18:17:30 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-27?page=comments#action_12417866 ] 

Bryan Pendleton commented on HADOOP-27:

I still think this issue is important. The point of MapReduce is to squeeze as much performance
out of what you've got as possible. I regularly have machines with hundreds of gigs of space
fail because one of their 4 drives is full. And, yes, the cascading failure problem is the
real kicker. It sounds like your patch attacks both of those things - as soon as I have a
chance, I'll test it against my current cluster and see how it performs.

> MapRed tries to allocate tasks to nodes that have no available disk space
> -------------------------------------------------------------------------
>          Key: HADOOP-27
>          URL: http://issues.apache.org/jira/browse/HADOOP-27
>      Project: Hadoop
>         Type: Bug

>   Components: mapred
>     Reporter: Mike Cafarella
>  Attachments: minspace_mapredtask.patch
>   What it says above.  MapRed TaskTrackers should not offer task service if the local
> space is too constrained.

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